TULSA, Okla., Nov. 1, 2017 — Samson Resources II, LLC (“Samson” or the “Company”) announced today that it has entered into an Amended and Restated Senior Secured Revolving Credit Agreement (“Senior Credit Facility”) with JPMorgan Chase Bank, N.A., as Administrative Agent and Joint Lead Arranger, along with Capital One, N.A., and ING Capital, LLC, as Joint Lead Arrangers. The Senior Credit Facility is a $500 million Revolving Credit agreement with an initial borrowing base limit of $120 million. It has a three-year term and will expire in October 2020.

Samson also announced that it has executed a binding agreement to acquire a non-operating partner’s position in 20,000 gross acres / 6,700 net acres and its working interest in 74 wells (62 operated by Samson) which produce approximately 300 net barrels of oil equivalent per day, all located in Converse County, Wyoming. Closing is expected to occur on November 7, 2017, with an effective date of September 1, 2017. The Company intends to fund the acquisition from cash on its balance sheet.

Joseph A. Mills, President and Chief Executive Officer, commented: “After fully paying down our prior credit facility in September, we are very pleased to announce the execution of our Amended and Restated Senior Secured Credit Facility with an initial borrowing base of $120 million. This new facility better reflects Samson’s strong financial health and provides additional financial flexibility to grow our premium asset base in the Powder River and Green River Basins of Wyoming. We want to thank JPMorgan and the rest of our lender group for their support and ongoing commitment to Samson Resources.”

Mills further commented: “We are very excited about the addition of 20,000 gross and 6,700 net acres to our existing 146,000 net acre position in the Powder River Basin. The acquisition is complementary and accretive to Samson and enhances Samson’s core acreage position in the Hornbuckle area of Converse County while expanding Samson’s presence in the Frontier, Shannon, Niobrara and Mowry plays in the Powder River Basin of Wyoming. We are very excited to acquire this interest from a non-operating partner in wells we already operate and manage. In particular, we believe the acreage has tremendous upside potential in the emerging Niobrara and Mowry plays and bolsters our position in this exciting basin.”

This acquisition follows on the announcement of Samson closing the sale of its East Texas assets in late September for a gross purchase price of $525 million and the subsequent payoff of its $210 million of senior debt. In addition, Samson previously announced a Special Distribution of $250.250 million that was paid on October 31, 2017 to unitholders of record as of the close of business on October 17, 2017.

Samson is a privately held onshore exploration and production company headquartered in Tulsa, Oklahoma.

Forward-Looking Statements

In this press release, all statements that are not purely historical facts are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements may be identified by the words “believe,” “expect,” “anticipate,” “project,” plan,” “estimate,” intend,” “potential” and other similar expressions. Forward-looking statements are based on currently available business, economic, financial and other information and reflect management’s current beliefs, expectations and views with respect to future developments and their potential effects on Samson. Actual results could vary materially depending on risks and uncertainties that may affect Samson and its business. Samson’s actual actions and results may differ materially from what is expressed or implied by these statements due to a variety of factors, including (a) the ability of Samson to perform well and compete effectively upon its emergence from bankruptcy, (b) the ability of Samson to continue to attract and retain qualified employees following emergence, and (c) other risks and uncertainties as disclosed by Samson II in the future. Samson assumes no obligation to update any forward-looking statement made in this press release to reflect subsequent events or circumstances or actual outcomes.